Improvement in water-proof joints for roofing-boards



5 J. BEAZLEY.

Water-Proof Joints for Roofing-Boards.

N l48 346 Patented Marchl0.1874.

Witnesses: X in emur:

M. Per '1 W meys.

UNITED STATES PATENT- Ornion.

JOHN BEAZLEY, OF HOUSTON, TEXAS, ASSIGNOR OF ONE-FIFTH HIS RIGHT TO STEWART & BAEZIZA, OF SAME PLACE.

IMPROVEMENT IN WATER-PROOF JOINTS FOR ROO FlNG-BOARDS- Specification forming part of Letters Patent No. 143,346; dated March 10, 1874 application filed October 25, 1873.

To all whom it may concern Be it known that 1, JOHN BEAZLEY, of Houston, in the county of Harris and State of Texas, have invented a new and useful Improvement in Water-Proof Joints for Roofing- Boards, of which the following is a speeifica tion The invention will first be fully described, and then pointed out in the claim.

In the accompanying drawing, Figure l is a perspective view of a building constructed according to my invention. Fig. 2 is a detail, being a cross-section or end view of the roofing, showing the groove-joint.

Similar letters of reference indicate corresponding parts.

A and B represent the boards or planks, the side edges of which are rabbeted somewhat dovetailing, so that the two parts lap or halve together, and leave the sides or surfaces of the boards flush with each other, as seen in Fig. 2. O is a groove in the rabbet D of the lower part B, next to the shoulder E. It is one-half, more or less, the width of the rabbet.

The lower outer corner of the rabbet of the board A is beveled, as seen at F, thus leaving an interior hidden groove, (3, which readily conducts oil any water that may enter from the outside. These rabbets, groove, and bevel, to form this joint, may be cut with the same facility as the ordinary tongue and groove, either by machinery or by hand, the cutting bit of the rabbeting=tool being formed for the purpose.

Having thus described my invention, I claim as new and desire to secure by Letters Pat cut-- The combination of edge=rabbeted boards A B, the former having the bevel F, and the lat ter having the shoulder E and groove 0, con structed and arranged as and for the purpose described. I JOHN BEAZLEY. Witnesses:

D. U. BARZIZA, J OHAN HoLMBURe. 

